Great Plains EWNT7 1523Q-1630Q Operator Manual - Manual (Page 13)

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11 4/25/06 Great Plains Mfg., Inc.
Section 4 Adjustments
EWNT7 and EWNT10 End Wheel No Till Drill 150-082M-A
Drive System Clutch
Refer to Figure 4-1:
The main drive clutch (#1) on your drill is a mechanical
release - jaw style design which may require some ad-
justments before using your drill. Raise the drill to the
transport position. Check between the two cam plates
(#2) which disengage the jaws (#3) & (#4) of the clutch
halves. The clutch jaws (#3) & (#4) should be completely
separated at this point.
Adjustments can be made to the cam plate (#6) by loos-
ening the bolts, and nuts (#5) in the clutch tab(#7).
Whenever adjusting the clutch, check to be sure the
clutch jaws (#3) & (#4) are engaged completely when
the drill is lowered to the field position. The clutch jaws
(#3) & (#4) should also be completely disengaged when
the drill is raised for transport.
Jaw Clutch Adjustment
Figure 4-1
14018
Drive Train Operation
Refer to Figure 4-2:
Your grain drill uses standard no. 40 roller chain through
out its drive system. The drive system is simple and de-
signed for low maintenance. All chain idlers should be
checked at the beginning of each season to insure that
they are adjusted properly.
To do a maintenance inspection, simply check each idler
to insure that it is taking up any excess chain slack. On
fertilizer and native grass drills the inspection cover for
the drive is located on the outside of the left box end pan-
el and this cover must be removed to inspect the fertilizer
and native grass drive chain and idler.
In the left wheel arm are two idler sprockets, Figure 4-2,
which should be readjusted after the first 100 acres of
drill use and then at the beginning of each season. To
adjust, move the front idler sprocket, on the top of the
chain, down, by loosening the jam nut and screwing the
adjustment stud in. Chain idlers should always be kept
snug against the slack side of the chain. Do not over
tighten chains, it will cause excessive wear on idlers and
drive components. Retighten the jam nut to maintain the
idler position.
10119
Idler Sprocket Adjustments
Figure 4-2
Section 4
Adjustments